This is a redstone powered door that leads to an underground place, you can build your house here!

I found some dungeons in the map. I would advise you to download the world file instead of the schematics.

The seed is: -4378335235254040588

Remember the - before the seed. Without it will create a winterbiome map which you can also try out.

I think it is a cool seed because it is on an island and I think I am very lucky to get it randomly generated

If you are instrested you can see my texture pack. It has had lots of progress so far.

If you are interested in a server the server I play on is: mc.pvpkillz.com

Enjoy :)